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Mainspring
For Seiko 2M21
1.60 x 0.120 x 340 x 10.5 mm
GR Reference #: GR4538
Height (H): 1.6mm
Thickness (T): 0.12mm
Total Length (TL): 340mm
Barrel Diameter (BD): 10.5mm
End Type: Manual
To look for similar mainsprings that exactly match a specific dimension, select it from the links above.
Movement Listing
This mainspring is used by the following movements:
| Movement | Description | Ligne |
|---|---|---|
| Citizen 4-082346 | CITIZEN CASE | |
| Citizen 4-731867 | CITIZEN CASE | |
| Dugena 972 | 6.75 x 8 | |
| Omega 16162 | OMEGA CASE - USES CALIBER 440 | |
| Omega 16162 | OMEGA CASE - USES CALIBER 440 | |
| Seiko 1100-5250 | SEIKO CASE REFERENCE | |
| Seiko 5P30-6A60 | SEIKO CASE REFERENCE | |
| Sonceboz 262 | 8.75 | |
| Waltham N | AMERICAN P/W M#1890 |
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Similar Mainspring Listing
This mainspring is similar to the mainspring used by the following movements. A similar mainspring differs slightly in one or more dimensions but may possibly still work as a replacement. When values differ the exact value is shown brackets for reference:
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